Comparing International Rates

I have been checking out and comparing international rates of Verizon, AT&T, Google Voice, Magic Jack and Vonage of course to see where I could save money.

Here are the links to their international calling rates.
Verizon
AT&T
Google Voice
Magic Jack
Skype
Vonage

There are big difference on the prices. But I found Google Voice the cheapest to call the Philippines. It is not the most convenient method unless you have an iPhone or Android phone to install the app. But if you could settle on using your PC in placing international call then this will save you a lot of money.